2017 | AFC ACCOMPLISHMENTS 175 Figure 2. a) and b) Carbon ion maps in APT datasets extracted from unirradiated material. Scales of the datasets are labeled beside arrows; c) carbon ion map and carbon clusters in HT-9 irradiated to 100 dpa at 400°C; carbon clusters were defined by 6.8 at% C iso-concentration surfaces; d) proxigram of Cr and C for those iso-concentration surfaces (interface located at 0 nm).